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Re: [TCML] MOT supply
Hi,
I don't think the different values of your caps should matter (they are quite
close). If you could find another couple of microwave caps, you could build a
voltage quadrupler, as in this design:
http://www.scopeboy.com/tesla/tc2schem.html
For the charging choke, MOTs work well. You would probably need two in series
(using the secondaries), with the 'I' sections cut off. The design in the link
above uses tube amp power supply chokes - maybe this is better for a low power
coil if you can get hold of something similar. As long as the choke has
a value
of more than several H, there is no need for a series resistor.
Good luck.
Tom
Quoting Ben Sneath <bsneath@xxxxxxxxxxxxxxxx>:
hi all,
i've recently acuired a small MOT from a 800W microwave, and
was wondering how i can get the highest voltage out of it as
posible for my 1 3/4" TC.
I've got a pair of microwave caps and diodes for a voltage
doubler, but one cap is .94uf, and the other is 1.15uf. will
it matter if they are different when hooked up in a WC
multiplier? also, how can i make a charging choke for the
multiplier (i used all the 240v transformers i had on my
1.2Kw mot but it still didnt work), and will i need a high
value resistor in series with the output so the 5 or so
joules in the multiplier won't discharge through the TC's
spark gap or will the choke take care of this problem? BTW,
current draw from this coil won't be much because it's so
small (won't need to rev it up to the full 800w unless i
want to see sparks/molten metal fly ;-)
merry xmas and safe coil'n to all...
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